In the past few days I wake up with horrible diarrhea, sweating during it and everything. Then it goes away but i feel nauseous on and off without throwing up once. Also i usually get my period around the 25 and today is the 2nd....a few days ago i had a spot of pink when i wiped but nothing but clear/white discharge after that. No cramping but mild stomach aches. I pee twice as much lately too. I went 4 times in anhr which is completely something new. I took a pregnancy test yesterday on the first and it was negative. I also have bloating and back pain these both happen later in the day. Help???